I don't know anythinga about fieldtrip, and the discrepancy could be in
they way it interprets coordsinates. See this
https://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems
Does it look ok if you look at it in freeview?
On 12/28/17 7:29 PM, Dorothy Sincasto wrote:
Hi
I've been struggling to convert a freesurfer surface into an MNI space
coordinate. I tried to follow some tutorials and to play around with
transformation matrices but nothing works.
I have an MNI surface from freesurfer (the cvs_avg35_inMNI152) and I
need to align it to the 3d MNI 152. When loading them with
fieldtrip it almost matches as can be seen in the picture
https://ibb.co/evkcRb
I would like to apply a transformation to align the surface to the
volume.
For the 3d MNI I have the transformation matrix:
-10091
010-127
001-73
0001
For the surface I can get the ori.mgz transformation:
-100128
001-146
0-10148
0001
Could someone point me out how to convert the FS surface into
spm coordinates?
Thank you
Dorothy
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